Automatic most mobkills prefix

Hi.
I would like to have simple prefix, which track mobkills of players and will automatic give custom prefix to a player with most mobkills. So only 1 player at that time will have that prefix.

It would be even more awesome, if it could track bosskills (Wither and Dragon) and specified mobs, for different prefixes (Like Detonator for most creeper kills etc).

This would be fun competitive plugin on every vanilla server and made players want to grind boss more.

Thank you for reading

 

I can do this and have it done by the end of the week, if not sooner. What MC version?

EDIT :
@SaltyDaddy
I have finished the plugin. Tell me if it's what you wanted. <Edit by Moderator: Redacted not allowed paid resource url>

 

@crazicrafter1 Hi, thats what I wanted!
Is it possible to count only mobs in selected world? As in the time of creating this thread I made a fun minimap world, where are many mobs to kill, so players playing on that world would have that title 100%

And thank you